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Finding the Fourth Proportional to 713,753.15, 984,974.73 and 407,923.07

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Solution

The fourth proportional to 713,753.15, 984,974.73 and 407,923.07 is: 562,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,753.15 : 984,974.73 = 407,923.07 : x
  2. Step 2: Convert to fraction form
    713,753.15/984,974.73 = 407,923.07/x
  3. Step 3: Cross multiply
    713,753.15x = 984,974.73 × 407,923.07
  4. Step 4: Simplify right side
    713,753.15x = 401,793,915,734.02
  5. Step 5: Solve for x
    x = 401,793,915,734.02/713,753.15
  6. Step 6: Final answer
    x = 562,931.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.